HD Home Run IP Changed - Still Querying Old IP

I recently moved all my clients from the default subnet (10.0.1.0/24) to another subnet (10.0.2.0/24) so I can have all my network switches, APs, etc. on the default LAN.

My HDHomeRun device was using 10.0.1.16 and I reassigned it to 10.0.2.7. My Synology NAS was using 10.0.1.15 and is now using 10.0.2.2.

Since doing this, I keep getting firewall blocks in the log where the NAS is attempting to access 10.0.1.16. This happens periodically (sometimes 30 mins, sometimes an hour, sometimes after a few hours).

I have gone through all settings, deleted all passes, and deleted the source and added it again. I cannot find anywhere in settings where 10.0.1.16 is being referenced.

10.0.1.16 is now assigned to a network switch.

Curious how I can resolve this? If I stop Channels DVR from running, it doesn't ping 10.0.1.16. As soon as I start it, it will ping 10.0.1.16.

Thanks for any help you can provide!

Never mind... found this thread: Cannot remove HDHomeRun from source menu - #49 by PaulieORF

curl XDELETE allowed me to delete it and it stopped querying the old IP address.